Amid a dismal recent spell of form, which culminated in a 2-1 Europa League defeat at home to Eintracht Frankfurt last night, Arsenal confirmed that the club had taken the decision to part ways with manager Unai Emery.
Emery was relieved of his duties on Friday morning following a run of seven games without a win.
Just down the road from Arsenal, Mauricio Pochettino was sacked by Tottenham Hotspur earlier this month despite taking the club to the UEFA Champions League final in June. His academy position is not a coaching role, though, with Mertesacker instead tasked with managing the various coaching departments within the system.
Emery's sacking was followed by confirmation that the Arsenal hierarchy have opted to hand temporary responsibility of first-team management duties to club legend Freddie Ljungberg. "He (Emery) seems to have lost the players and the desire has ebbed away".
Even short-term success has not been enough for several Premier League managers, with Antonio Conte and Claudio Ranieri among those to have been dismissed just a year after leading their team to the Premier League title.
"The Arsenal.html" Daily MailArsenal.html" says the Gunners want someone who can enhance the club's public profile and transmit a clear message from within the camp to supporters.
Spaniard Emery succeeded Arsene Wenger in May 2018 and took Arsenal to the Europa League final past year but frustration with the club's erratic league form this season has grown, with the side sitting eighth in the table with 18 points from 13 games.
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In his first season, Arsenal failed to qualify for the UEFA Champions League and were soundly beaten in the UEFA Europa League Final by Chelsea in Baku. Emery previously coached at Lorca Deportiva, Almeria, Valencia, Spartak Moscow, Sevilla and Paris Saint-Germain, before landing at Arsenal.
And so the search for a new head coach at the Emirates Stadium is underway, and a range of candidates are rumoured to be in line.
"For the moment it's for the future of the football club", he told Arsenal's website.
The likes of Wolves boss Nuno Espirito Santo and former Arsenal midfielder Mikel Arteta, now a coach at Manchester City, have been linked with the full-time job. The Gunners have not won a Premier League match since October 6 against Bournemouth.
Ljungberg also prefers to play out from the back, as Emery also did, but he also prefers his teams to press high up the pitch, the way most modern, successful sides do these days.
Former Juventus and AC Milan coach Massimiliano Allegri, who is out of work, is another option.